mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-24 05:04:00 +08:00
bdc04e3174
This is used by various drivers not just serial and can be extracted as commonality Signed-off-by: Alan Cox <alan@linux.intel.com>
115 lines
2.7 KiB
C
115 lines
2.7 KiB
C
#ifndef HAYESESP_H
|
|
#define HAYESESP_H
|
|
|
|
struct hayes_esp_config {
|
|
short flow_on;
|
|
short flow_off;
|
|
short rx_trigger;
|
|
short tx_trigger;
|
|
short pio_threshold;
|
|
unsigned char rx_timeout;
|
|
char dma_channel;
|
|
};
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
#define ESP_DMA_CHANNEL 0
|
|
#define ESP_RX_TRIGGER 768
|
|
#define ESP_TX_TRIGGER 768
|
|
#define ESP_FLOW_OFF 1016
|
|
#define ESP_FLOW_ON 944
|
|
#define ESP_RX_TMOUT 128
|
|
#define ESP_PIO_THRESHOLD 32
|
|
|
|
#define ESP_IN_MAJOR 57 /* major dev # for dial in */
|
|
#define ESP_OUT_MAJOR 58 /* major dev # for dial out */
|
|
#define ESPC_SCALE 3
|
|
#define UART_ESI_BASE 0x00
|
|
#define UART_ESI_SID 0x01
|
|
#define UART_ESI_RX 0x02
|
|
#define UART_ESI_TX 0x02
|
|
#define UART_ESI_CMD1 0x04
|
|
#define UART_ESI_CMD2 0x05
|
|
#define UART_ESI_STAT1 0x04
|
|
#define UART_ESI_STAT2 0x05
|
|
#define UART_ESI_RWS 0x07
|
|
|
|
#define UART_IER_DMA_TMOUT 0x80
|
|
#define UART_IER_DMA_TC 0x08
|
|
|
|
#define ESI_SET_IRQ 0x04
|
|
#define ESI_SET_DMA_TMOUT 0x05
|
|
#define ESI_SET_SRV_MASK 0x06
|
|
#define ESI_SET_ERR_MASK 0x07
|
|
#define ESI_SET_FLOW_CNTL 0x08
|
|
#define ESI_SET_FLOW_CHARS 0x09
|
|
#define ESI_SET_FLOW_LVL 0x0a
|
|
#define ESI_SET_TRIGGER 0x0b
|
|
#define ESI_SET_RX_TIMEOUT 0x0c
|
|
#define ESI_SET_FLOW_TMOUT 0x0d
|
|
#define ESI_WRITE_UART 0x0e
|
|
#define ESI_READ_UART 0x0f
|
|
#define ESI_SET_MODE 0x10
|
|
#define ESI_GET_ERR_STAT 0x12
|
|
#define ESI_GET_UART_STAT 0x13
|
|
#define ESI_GET_RX_AVAIL 0x14
|
|
#define ESI_GET_TX_AVAIL 0x15
|
|
#define ESI_START_DMA_RX 0x16
|
|
#define ESI_START_DMA_TX 0x17
|
|
#define ESI_ISSUE_BREAK 0x1a
|
|
#define ESI_FLUSH_RX 0x1b
|
|
#define ESI_FLUSH_TX 0x1c
|
|
#define ESI_SET_BAUD 0x1d
|
|
#define ESI_SET_ENH_IRQ 0x1f
|
|
#define ESI_SET_REINTR 0x20
|
|
#define ESI_SET_PRESCALAR 0x23
|
|
#define ESI_NO_COMMAND 0xff
|
|
|
|
#define ESP_STAT_RX_TIMEOUT 0x01
|
|
#define ESP_STAT_DMA_RX 0x02
|
|
#define ESP_STAT_DMA_TX 0x04
|
|
#define ESP_STAT_NEVER_DMA 0x08
|
|
#define ESP_STAT_USE_PIO 0x10
|
|
|
|
#define ESP_MAGIC 0x53ee
|
|
#define ESP_XMIT_SIZE 4096
|
|
|
|
struct esp_struct {
|
|
int magic;
|
|
struct tty_port port;
|
|
spinlock_t lock;
|
|
int io_port;
|
|
int irq;
|
|
int read_status_mask;
|
|
int ignore_status_mask;
|
|
int timeout;
|
|
int stat_flags;
|
|
int custom_divisor;
|
|
int close_delay;
|
|
unsigned short closing_wait;
|
|
unsigned short closing_wait2;
|
|
int IER; /* Interrupt Enable Register */
|
|
int MCR; /* Modem control register */
|
|
unsigned long last_active;
|
|
int line;
|
|
unsigned char *xmit_buf;
|
|
int xmit_head;
|
|
int xmit_tail;
|
|
int xmit_cnt;
|
|
wait_queue_head_t break_wait;
|
|
struct async_icount icount; /* kernel counters for the 4 input interrupts */
|
|
struct hayes_esp_config config; /* port configuration */
|
|
struct esp_struct *next_port; /* For the linked list */
|
|
};
|
|
|
|
struct esp_pio_buffer {
|
|
unsigned char data[1024];
|
|
struct esp_pio_buffer *next;
|
|
};
|
|
|
|
#endif /* __KERNEL__ */
|
|
|
|
|
|
#endif /* ESP_H */
|
|
|